baber/WOPTO huggingface dataset:
Patent GB-744872-A (GB)
Title: Improvements in house telephone systems
Inventor: JOHNSON BENJAMIN BERTIE
IPC: H04Q3/00
Filed: 1953-10-15
Abstract: 744,872. Automatic exchange systems. TELEPHONE MANUFACTURING CO., Ltd. Oct. 8, 1954 [Oct. 15, 1953], No. 28507/53. Class 40 (4). A house telephone system has each of its substations connected to a central switching station by four conductors, two of which are reserved exclusively for speech and two for station selection and ringing, each substation having push-buttons for station selection. The system described differs in detail from that described in Specification 723,997. Discrimination between two lines of a pair is effected as described in Specification 736,262. 20-line exchange. When subscriber 11 closes his loop line relay L1-2 common to lines 11, 12 energizes to connect up relay AG serving the particular line group and the appropriate finger magnet 1 in each of the line finders, so disconnecting BG and the other finger magnets. If subscriber 12 called instead, the operation would be the same with BS also pulling up to energize change-over relay CH. AG energizes relay SS associated with the first idle trunk to operate feed relay A which, dependent on AG, connects up the appropriate operating magnet PR1 of the selective relay unit. RT also energizes. The calling line is now extended to relay A, cut-off relay K1 pulls up and L1-2 restores, followed by AG, the finger magnets, and SS. The digit keys 1-5 connect earth to wire Q alternatively through oppositely-poled rectifiers RF( + )1, RF(- )1, with or without resistance R7, or directly. Relays X-Z respond in the manner shown in Fig. 2 and control corresponding relays TX-TZ which lock in series with DC and energize appropriate fingermagnets FC(UX), FC(UY) of the connectors. In response to a second keying operation, relays X-Z control operating magnets UX, UY and change-over relay UZ to complete the desired connection, TX-TZ and DC being released. If the line is idle, H energizes to operate cut-off relay K in the called line. H switches through, applies ringing current to the Q wire of the called line and returns ringing tone through relay D. When the called party answers back, bridge relay D operates to release RT. At the end of conversation A and D release to return the circuit to normal.
Patent GB-661257-A (GB)
Title: Heel-toe foot gear lever for motor-cycles
IPC: B62M25/04
Filed: 1949-11-07
Abstract: 661,257. Variable-speed gearing. MARCAR, G. V. Nov. 7, 1949, No. 28517/49. Class 80 (ii). The usual toe-operated foot gear-change lever D with pedal E of a motor-cycle is provided with an extension piece A clamped thereto so that all changes up or down may be effected by downwards movement of the heel and toe.
Patent GB-1424884-A (GB)
Title: Agricultural machines
IPC: A01B73/00
Filed: 1973-06-15
Abstract: 1424884 Transport of agricultural machines WARTSILA AB OY 15 June 1973 [16 June 1972] 28521/73 Headings A1B and AID [Also in Division B7] An agricultural machine, for example a harrow, or seed or fertilizer distributor, is provided with working wheels 2 and, at one end of the machine, retractable transport wheels 3. The other end of the machine is connected to a tractor which supplies hydraulic power to the double-acting piston-and-cylinder assembly 7 for raising and lowering the transport wheels 3 by pivoting the forked member about the pin 4. The wheels 3 can be locked in the "transport" or "inoperative" position by a pin fitted in holes 5 or 6.
Patent GB-832787-A (GB)
Title: Improvements in electrically drivable pulley hoists
IPC: B66D3/22
Filed: 1956-09-18
Abstract: 832,787. Electric hoists. PUTZER, H. Sept. 18, 1956 [Sept. 19, 1955], No. 28542/56. Class 78 (5). An electrically-driven hoist is adapted to be used with one or two falls of chain. Motor 3 secured to wall 11 drives load sprocket 9 through shaft 8 and the gearing of eccentrically - positioned gear-box 2, the chain, when used with two falls, being hooked at its end over hook 19, the said hook 19 being carried by chain guide 6. The guide 6 also carries chain stripper 18 and is rotatable on shoulders 14, 15 but may be secured to walls 10, 11 by pins 16, 17. The hoist is adapted for one-fall operation by unhooking the second fall from hook 19, the displacement of gear-box 2 .about its pivot permitting choice of position of the sprocket axis in the one-fall operative position.
Patent GB-382731-A (GB)
Title: Improvements in or relating to critical pressure steam generators
IPC: F22B37/54
Filed: 1931-10-14
Abstract: 382,731. Critical pressure boilers. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Siemens- Schuckertwerke Akt.-Ges. ; Siemensstadt, Berlin.) Oct. 14, 1931, No. 28575. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 26, 1931.] [Class 123 (ii).] Boilers formed of a tube system comprising radiantly heated sections 8, 10 in a combustion chamber 2 and other sections 7, 9, 11 in one or more subsequent furnace gas flues, a pump 12 forcing the working medium of at least the critical pressure through the system, are so dimensioned that the zone of conversion from liquid to vapour lies in the flue, e.g. about the portion 14 of tubing 9. A tubular enlargement 15 is provided beyond this zone in the direction of flow of the medium and preferably out of contact with the flue gases, and to effect a desludging of the boiler the flue gas temperature is caused to fall by varying the speed of an exhausting fan 4 and of a chain grate 1 until liquid appears in the enlargement from which it may be discharged through a pipe 20. In a modification in which, for example, three coils in parallel are arranged in the flues and combustion chamber, the zone of conversion is shifted by increasing the quantity of medium flowing into the coil to be desludged. A diffuser-like nozzle acting as a return flow throttle is located in each coil beyond the respective desludging pipe to prevent back flow so that during the desludging of a coil the tube system beyond this zone is supplied with the normal quantity of medium.
Patent GB-1504056-A (GB)
Title: Flame resisting cables
IPC: H01B7/282
Filed: 1975-07-07
Abstract: 1504056 Fire resistant cable THOMSONBRANDT 7 July 1975 [9 July 1974] 28607/75 Heading H1A A fire-resistant cable comprises at least one insulated conductor, a layer of insulation around the insulated conductor(s) and a metal sheath provided around the assembly. An additional layer of non-inflammable material is provided over the sheath, this layer having a base of unplasticized P.V.C., the sheath preferably aluminium, stainless steel or copper, applied either as tape or by electrolytic deposition, and the insulating layer preferably being plasticized P.V.C.
Patent GB-601551-A (GB)
Title: Improvements relating to the manufacture of shaped articles such as shoulder and other pads from fibrous material
IPC: A41D27/26
Filed: 1945-10-30
Abstract: 601,551. Shoulder pads. LANGEAIS, C. H. Oct. 30, 1945, No. 28693. Convention date, June 12, 1941. Drawings to Specification. [Class 141] [Also in Group V] Shoulder pads or epaulettes to be inserted in articles of clothing are made by pressing fibrous material in moulds and then enveloping the moulded mass in gummed wadding or other fabric, which is sewn on.
Patent GB-798126-A (GB)
Title: Improvements in or relating to metal plates with internal passages
Inventor: SHIRLEY CHARLES RAYMOND
IPC: B21D53/04
Filed: 1955-10-10
Abstract: 798,126. Press plates. ENGLISH STEEL CORPORATION, Ltd. Aug. 9, 1956 [Oct. 10, 1955], No. 28738/55. Class 87(2). [Also in Group XXII] An internally passaged metal plate 12A, Fig. 1, for use as an internally heated press platen, is made by assembling face to face three metal plates 1, 8, Fig. 2, with the intermediate plate 1 having at least one through slot 3, welding the plates together at their edges 11 to form a slab and rolling the latter to increase its area and reduce its thickness. The slot is preferably a continuous slot of wave form, Fig. 1 (not shown), flame-cut in the plate. The final passages are of approximate rectangular section, Fig. 5 (not shown), except at their ends 4A, Fig. 5 (not shown)- After rolling the edges are trimmed, the surfaces machined and the ends of the passages 5A, Fig. 7, tapped for connections 17. A number of independent passages may be provided in the plate. Examples are given of the plate thickness and the size of slot before and after rolling.
Patent GB-298535-A (GB)
Title: Improvements in the combustion chambers of internal combustion engines
IPC: F02B23/08
Filed: 1928-10-06
Abstract: 298,535. Darche, A. A. A. Oct. 10, 1927, [Convention date]. Cylinders, combustion chambers of, and arrangement of igniters and baffles for guiding charge in.-An extension C of the piston closely approaches the cylinder head at the end of the stroke and divides the clearance space into two combustion chambers A, B. Instead of the valves being arranged side by side, as shown, they may be opposed, the sparking plug 2 being then located in the wall of chamber A opposite to the cylinder.
Patent GB-763867-A (GB)
Title: Improvements in or relating to gas-fired water heaters
Inventor: SMITH CHARLES DONALD
IPC: F24H1/10
Filed: 1954-10-06
Abstract: 763,867. Water heaters. FLAVEL & CO., Ltd., S. Oct. 21, 1955 [Oct. 6, 1954], No. 28749/54. Class 64(1) In a balanced-flue water heater, the water flows in a thin film downwardly over the outer surface or surfaces of a heat exchanger 24, 25 mounted within a closed casing 10, 32, and the whole of the combustion air is brought from outside into the lower part of the casing and fed into the lower end of the heat exchanger through and around a gas burner 19 or burners below the heat exchanger. The hot combustion gases pass upwardly through the latter and are discharged from the casing through a rearwardly extending flue 33. This flue may be above and parallel to or, as shown, may extend through the air inlet 14. A vertical passage 12 leading from the inlet 14 has an outlet 15. The heat exchanger comprises an inner frusto-conical shell 24 and an outer corrugated cylindrical shell 25 having openings 28, 29 with raised lips to prevent the entry of water. The heat exchanger is surrounded by an inner casing comprising a shell 17 and an upper flanged plate 16. A lower flanged plate 18 supports the burner 19, valve 20, and water inlet and outlet pipes. A modified heater has two heat exchangers each with its own burner.
Patent GB-261423-A (GB)
Title: Process for dyeing cellulose esters
IPC: C09B53/02
Filed: 1926-11-15
Abstract: 261,423. Soc. of Chemical Industry in Basle. Nov. 14, 1925. [Convention date]. Grant of Patent opposed. Indophenols.-Cellulose esters are dyed in fast blue to green tints bv employing indophenols of the general formula N(R<1>R<2>)-R<3>-N=R<4>=O. in which R' R<2> represent hydrogen, alkyl, aryl, or aralkyl, R<3> an aromatic nucleus, substituted or not, and R' an aromatic nucleus with at least one halogen atom as a nuclear substituent. These indopbenols may be made by joint oxidation of a halogenized p-aminophenol and an aromatic amine with a free p-position. In an example, acetate silk is dyed a turquoise blue with the indophenol from 2 :6-dichlor-4-aminophenol and dimethylaniline. The indophenols containing only one chlorine atom in the R<4> nucleus giver bluer tints, e.g. the indophenols from 2-chlor-4- aminophenol and dimethylaniline or o-toluidine, Greener tints are obtained with indophenolsfrom 2 6-dicblor-4-aminophenol and diethylaniline, methylbenzylaniline. N-ethylphenylglycine, N-methyldiphenylamine, or a-naphthylamine derivatives. Still greener tints are obtained with indophenols from more highly halogenized aminophenols, e.g. that from 2:5: 6-tri. chlor-4-aminophenol and diethylaniline. Specifications 219,349, 220,505, and 263,579 are referred to. 2:5::6-Trichlor-4-aminophenol is obtained from p-aminophenol by chlorination in water.
Patent GB-188928-A (GB)
Title: Method of obtaining light hydro-carbon distillates from heavier hydro-carbons
Filed: 1921-10-31
Abstract: 188,928. Hovey, D. W. Oct. 31, 1921. Hydrocarbons, cracking.-In obtaining light distillates by distilling gas oils, fuel oils, &c. in a still 5 filled with porous bricks 18 and heated internally by steam coils 19, 20, a vapour pressure of 25 lb. per sq. in. or more, is maintained in the still by a valve in the pipe leading the vapours to a condenser. The steam is supplied to the coils 19, 20 through superheating coils 22, 23 heated by burners 24, the waste gases from which heat the still externally. The oil is supplied by a perforated pipe to the top of the still, and residual oils may be run off continuously or intermittently. The steam may be heated to 900-1000‹ F.
Patent GB-226347-A (GB)
Title: Improvements in and relating to distributors for magneto electric machines
IPC: F02P7/00
Filed: 1923-11-16
Abstract: 226,347. British Thomson-Houston Co., Ltd., Young, A. P., and Griffiths, L. Nov. 16, 1923. Rotary distributors of the kind wherein the fixed contact segments 2 are secured in position in recesses in the body 1 by serewing the terminal studs 3 into apertures in the seg. ments, are provided with locking pins 4 for preventing relative movement of the terminal studs and contact segments. The segments 2 are formed of nickel.
Patent GB-1078233-A (GB)
Title: Improved waste-paper basket
IPC: B65F1/00
Filed: 1964-07-15
Abstract: 1,078,233. Refuse receptacles. THEODOR ZOEPEL KOMM.-GES. July 15, 1964 [July 22, 1963], No. 29043/64. Heading A4A. A removable, imperforate inner container 2, for matches, fruit peelings &c. is held flush with, and against, an upper edge of a wastepaper basket 2 by an upper edge 8 resting on an outwardly arched edge 5 of the basket and by the engagement of projections (13) (Fig. 4, not shown) in grooves at the mouth of the basket. The container is preferably of washable material e.g. tin and may have a hinged lid. In modifications the basket has round, oval or multisided cross-section. The baskets and containers may be stacked separately.
Patent GB-187464-A (GB)
Title: Improvements in devices for re-winding kinematograph films
IPC: G03B21/43
Filed: 1921-11-02
Abstract: 187,464. Herbst, H. Nov. 2, 1921. No Patent granted (Sealing fee not paid). Feeding, winding, and registering webs.-In a rewinder for a kinematograph film a weighted or spring-pressed guide member is arranged to bear against the take-up reel to guide the film laterally and ensure a tight uniform winding. The guide member may be a flanged roller q bearing against the reel v near the take-up point, the flanges p being arranged to overlap several film layers. The roller q is adjustably mounted on an arm l secured to a shaft o carrying a second arm s fitted with an adjustable weight t.
Patent GB-918732-A (GB)
Title: Magnetic-focusing systems for travelling-wave tubes
Inventor: MURPHY BERNARD THOMAS
IPC: H01J23/087
Filed: 1958-09-11
Abstract: 918,732. Travelling-wave tubes. MULLARD Ltd. June 11, 1959 [Sept. 11, 1958], No. 29141/58. Class 39 (1). A magnetic focusing system for a travelling- wave tube comprises first permanent magnet means 1, 7 to produce a first uniform magnetic field and a second permanent magnet means 8 to produce a field adjacent the electron gun which converges and then diverges and a magnetic screen 9 arranged between the first and second magnet means to prevent interaction between the two magnetic fields. The permanent magnets 1, 7, 8 are two or more bar magnets evenly spaced around the tube. 1 and 7 are combined with further magnets not shown to produce a uniform field e.g. as in Specification 818,731. Permanent magnet 1 has a polepiece 3 and permanent magnet 8 a polepiece 10; the gun is in a higher magnetic field than is the delay line. The steel screen 9 serves also as a polepiece and may be movable axially or may be replaced by screens of different aperture sizes to alter the magnetic field distribution in the gun.
Patent GB-1534870-A (GB)
Title: Supporting structures for shuttering
IPC: E04G11/48
Filed: 1976-08-17
Abstract: 1534870 Support for floor shuttering KWIKFORM Ltd 17 Aug 1976 [11 July 1975] 29165/75 Heading EIS Supporting structure for floor shuttering panels comprises vertical props 14 having supporting heads 15 for supporting horizontally extending shuttering supporting beams (not shown) and groups of socket members 12 for securing cross members 13 between adjacent props by means of C-shaped brackets 13a provided on the ends of the cross members and wedges 13b; and additional beams 25, 30, for supporting shuttering at different levels from adjacent panels e.g. for the formation of reinforcing ribs, adjustably connected by means of U-section brackets to upright members 21, which are in turn connected to the vertical props 14 by means of at least one C-shaped bracket 23a to a socket member 12 on the prop.
Patent GB-1174725-A (GB)
Title: Attachment for Electronic Surface-Measuring Instruments
Inventor: DIETRICH MANFRED
IPC: G01B7/34
Filed: 1968-06-19
Abstract: 1,174,725. Measuring surface profiles electrically. CARL ZEISS JENA, VEB. June 19, 1968, No.29241/68. Heading G1N. The mean groove spacing of a surface profile is measured by passing the profile signal 1' through a high pass filter 2 to remove waviness to a Schmitt trigger circuit 3 which generates a sequence of pulses 3' of durations proportional to the corresponding groove spacings and a frequency meter 4 responds to the mean value of the pulse frequency and indicates the mean groove spacing directly on a reciprocity scale.
Patent GB-712642-A (GB)
Title: Improvements in or relating to boilers
IPC: F24H1/26
Filed: 1951-12-13
Abstract: 712,642. Boiler furnaces. CHAPPUIS, L. L. Dec. 13, 1951 [Jan. 29, 1951], No. 29247/51. Class 51 (1) In a boiler a number of parallel water jackets 1, Fig. 5, are each in the form of a parallelopiped and are connected at their corners to spaced external water jackets 4, Fig. 1, each partially enshrouding a combustion chamber 5 so as to form an upper, a lower and a lateral heat-exchange surface therefor, a second lateral heat--exchange surface for the combustion chamber being provided by the water jackets 1. The jackets 1 are disposed at intervals so as to provide spaces therebetween, the said spaces being provided with partitions 19, Fig. 1, to control the flow of hot gases from the combustion chambers to a chimney stack. Fuel is supplied from hoppers 6 and secondary air from ducts 11.
Patent GB-445589-A (GB)
Title: Improvements in or relating to apparatus for regulating the tension of rotary springs on power vehicles
IPC: B60G17/027
Filed: 1934-10-13
Abstract: 445,589. Vehicle spring-suspensions. PORSCHE GES., DR. ING. H.c.F., 24, Kronenstrasse, Stuttgart, Germany. Oct. 13, 1934, No. 29373. Convention date, Oct. 16, 1933. [Class 108 (ii)] In vehicle suspensions the tension of the torsion springs is adjusted automatically by hydraulic means in dependence on the vehicle load. Fig. 1 shows diagrammatically two half axles 2, 21 each connected to a pair of pivots 3, 3<1> the forward pivot of each pair being connected to one end of a torsion bar spring 6, 6<1> and the rear pivot being connected to a piston in a fluid pump 15, 151. The other end of each torsion spring 6, 6<1> is connected by a lever 8, 81 to a piston 11 arranged in chambers 17, 17, Fig. 3, of a cylinder 10. Each pump 15 is in communication by conduits 25, 25<1> through air regulators 34, 341 with the ends of the chambers 17, 17<1> and also with fluid containers or reservoirs 23, 231. The mid-points of the chambers 17, 17<1> are also in communication with the reservoirs 23, 23<1> by conduits 22. To set the springs initially the vehicle is raised and thus relieves all load causing the pistons 11 to uncover the ports 21 and permit fluid to enter from the reservoirs 23, 23<1> into the chambers 17, 17<1> and also the pumps 15, 151. The vehicle is gradually lowered causing in the first instance the pistons 11 to be pressed inwards covering the ports 21 but at the same time actuate the pumps 15, 15<1> to force fluid into the air regulators 34, 34<1> and increase the pressure causing the fluid to pass through the conduits 25, 25<1> into the chambers 17, 171 pressing back the pistons 11. Further oscillation due to travel causes the pumps 15, 15<1> to increase the pressure until the pistons are forced back so as to uncover the ports 21 when no further movement of the pistons 11 takes place and continued movements of the axles only result in torsion movements in the spring the end of which has a fluid brake acting as its abutment. Increased load on the vehicle moves the levers 8, 8<1> to press the pistons inwards to cover the ports 21 and movement of the axles during travel repeat the above operations to bring the axles back to mid position. Fig. 4 shows a pump 15 which is also a shock absorber, downward movement of the piston 14 forcing fluid through the pressure valve 29 into the conduit 25 and at the same time allowing part of the fluid to pass the pressure valve in the piston to the upper side of the piston. Reverse movement of the piston draws fluid through the suction valve 32 from the reservoirs and at the same time allows fluid to pass from the upper to the lower side of the piston past the suction valve 36.
Patent GB-384401-A (GB)
Title: Holder for collapsable tubes or containers
IPC: B65D35/34
Filed: 1931-10-22
Abstract: 384,401. Collapsable tubes or containers. JANSEN, 0., 40, Markstrasse, Dulken, Germany. Oct. 22, 1931, No. 29384. Convention date, Dec. 23, 1930. [Class 11. ] A holder for collapsable tubes or containers consists of a casing a, Fig. 2, having a flared slot c to receive the lower end of the tube, one wall of the slot being extended to form a partition e. The end of the tube is engaged by a slotted key g, which is guided in oblique slots f in the casing. When the key is turned and the tube is wound upon it, the key is drawn upwards in the slots, so that the wound portion is pressed tightly against the partition e. As more of the tube is wound, the key is forced away from the partition, so that a vertical pull is always exerted on the tube. One of the oblique slots may be replaced by an abutment in the wall of the casing. The holder may be made of porcelain &c., or may be formed from a strip of sheet metal, as shown in Fig. 3.
Patent GB-214936-A (GB)
Title: Improvements in or relating to door locks
IPC: E05B27/00
Filed: 1922-10-27
Abstract: 214,936. Rivers, H. O. Oct. 27, 1922. Lock mechanism, operated by non-rotating key; locks, revolving-barrel. - A pintumbler revolving- barrel lock is constructed so that on insertion of the key, the barrel may be turned by a handle. The handle is inoperative until the pin-tumblers are moved by the key to release the barrel for rotation and to connect the barrel with the handle spindle. The key-hole may be formed below or in the handle. In the form shown in Figs. 14 and 15, the handle spindle 8 rotates idly in the hollow barrel 5 this being locked to the casing by the pin-tumblers 17. An extension on the barrel operates the latch. The normal position of the lock is shown in Fig. 15. When the key is inserted, it lifts the pin-tumblers 17 to align breaks 18 with the periphery of the barrel 19, the upper parts 15 of the tumblers entering aligned recesses in the barrel 19 and handlespindle 8 against the spring-pressed plate 10<a>. The handle-spindle 8 and barrel are then locked together by the pins 15 and may be turned by the handle to operate the latch. Fig. 14 shows the lock after the barrel has been thus turned through 180‹, and the key withdrawn to allow the pins 17 to drop. When the lock has been operated and the parts returned to the position shown in Fig. 15, attempts to lift the tumblers 17 are prevented by turning the handle so that the solid part 19 of the spindle is over the pins 15. In the form shown in locked position, in Fig. 16, the key is inserted into the handle. To operate, the key is inserted into the key-hole 32 in the handle spindle, lifting the pins 33 to free the barrel 19<1> from the casing and lock together the barrel and spindle 22 so that the turning of the handle rotates the barrel for actuating the lock. The spring plates 10, 10<a> situated in the recess in the handle spindle 8 may be continuous or may be divided into as many segments as there are pin-tumblers.